Rare June Rain Moving into California

By By Kristina Pydynowski, Senior Meteorologist
June 06, 2011, 1:26:43 AM EDT

"Earlier today, the [San Francisco] airport broke its all-time June rainfall record..."

Rainfall totals this weekend into Monday across northern and central California will easily exceed what typically falls throughout the entire month of June by three-fold or more.

In ten hours ending at 6 a.m. PDT this morning, San Francisco's airport had more than quadrupled its monthly rainfall average of 0.11 of an inch.

Today's daily rainfall record was shattered by that time at the airport and numerous other locations across central California, including Oakland.

Earlier today, the airport also broke its all-time June rainfall record of 0.86 of an inch from 1967. The city's downtown June rainfall record of 2.57 inches from 1884, however, is safe for now.

The extreme difference between the records at the airport and downtown location stem from the fact that record keeping at the airport began in 1927, but date back farther in downtown San Francisco.

More daily rainfall records are sure to fall across northern and central California today as the band of rain swings inland.

Spottier showers will replace the rain tonight and Sunday before steadier rain returns Sunday night into Monday.

While some residents and visitors may opt to continue with outdoor plans regardless of the rain, that will not be an option at times due to occasional thunderstorms into Monday.

The strongest of these thunderstorms could drop small hail. All will spark potentially deadly lightning. Remember, if you hear thunder, you are close enough to get struck by lightning.

Californians will not just be reaching for rain gear, but also sporting jackets stated AccuWeather.com Meteorologist Bill Deger.

Temperatures will be held 10 to 20 degrees below normal each day into Monday throughout California's Central Valley, which is home to Sacramento and Fresno.

Snow levels will remain above Interstate 80's Donner Summit through Sunday despite the chilly air. It is Sunday night into Monday when snow levels down to 6,000 feet could lead to a wintry mess and travel headaches through this corridor.

Much of the Los Angeles Basin to San Diego will miss out on this weekend's rare rain event.

"A shower or two is possible in the Los Angeles area sometime Sunday night into Monday," stated AccuWeather.com Western Expert Meteorologist Ken Clark.

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